Home / 272,879.10-409,391.55-243,500.40

Finding the Fourth Proportional to 272,879.10, 409,391.55 and 243,500.40

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Solution

The fourth proportional to 272,879.10, 409,391.55 and 243,500.40 is: 365,315.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,879.10 : 409,391.55 = 243,500.40 : x
  2. Step 2: Convert to fraction form
    272,879.10/409,391.55 = 243,500.40/x
  3. Step 3: Cross multiply
    272,879.10x = 409,391.55 × 243,500.40
  4. Step 4: Simplify right side
    272,879.10x = 99,687,006,181.62
  5. Step 5: Solve for x
    x = 99,687,006,181.62/272,879.10
  6. Step 6: Final answer
    x = 365,315.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.